---
title: How to configure Sendgrid?
description: Welcome to Sendgrid configuration 👋
---

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# How to configure Sendgrid?

## In this article, we will walk you through connecting your SendGrid account to Warmy. The process has two parts: setting up SMTP (used to send warm-up emails) and handling IMAP (used to receive them). Because SendGrid is a sending-only service, the IMAP part works differently from other providers, as explained below.

🎧 Prefer to listen? Hit play to hear this article read aloud. 🔊 

   

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📼 Video instructions:

<iframe src="https://demo.arcade.software/BH0LznLJ48nZ9MiNI2gb?embed&amp;embed_mobile=tab&amp;embed_desktop=inline&amp;show_copy_link=true" title="How to configure Sendgrid? (New UI)" frameborder="0" loading="lazy" webkitallowfullscreen="" mozallowfullscreen="" allowfullscreen allow="clipboard-write" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; color-scheme: light;"></iframe>

#### [Before you start You will need:](https://support.warmy.io/knowledge/how-to-configure-sendgrid#l1)

- Access to your Warmy dashboard
- Access to your SendGrid account
- A sender email address that is already verified under **Sender Authentication** in SendGrid
- A mailbox that can receive email (for example, Gmail), since SendGrid does not provide an IMAP server

#### [Quick reference: SendGrid settings | Field in Warmy | What to enter | | --- | --- | | Email address | The sender email address verified in SendGrid under Sender Authentication | | Send From name | The name your recipients will see | | SMTP username | `apikey` | | SMTP password | Your SendGrid API key | | SMTP host | `smtp.sendgrid.net` (filled in automatically) | | SMTP port | Filled in automatically | How to connect SMTP](https://support.warmy.io/knowledge/how-to-configure-sendgrid#l1)

#### [**How to connect  IMAP**](https://support.warmy.io/knowledge/how-to-configure-sendgrid#l2)

### How to connect SMTP

### Step 1: Add a new sender in Warmy

From your Warmy dashboard, click **+ Add Sender**. Then select **SendGrid** from the list of providers.

### Step 2: Enter your email address

The email address you enter in Warmy must be the same one you have authenticated in SendGrid. To confirm it:

1. In your SendGrid portal, click **Settings** and select **Sender Authentication**.
2. Find the **Single Sender** section and copy the sender email address.
3. Go back to Warmy and paste it into the **Email address** field.

### Step 3: Enter a Send From name

Enter a **Send From name**. This is the name the recipients of your emails will see. It does not have to be your personal name; it can be a company, team or brand name.

### Step 4: Enter the SMTP username

For SendGrid, the **SMTP username** is always the word `apikey`. Type it exactly like that. It is not your SendGrid login, and it is not the API key itself.

 

![](https://support.warmy.io/hubfs/1CBFC221-D5B4-434D-B96C-DC59C30B5C93-jpeg.jpeg)

Paste in field  
![Screenshot 2025-04-15 073949](https://support.warmy.io/hs-fs/hubfs/Screenshot%202025-04-15%20073949.png?width=670&height=363&name=Screenshot%202025-04-15%20073949.png)

![](https://warmy.notion.site/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F1c3d3464-16c3-414b-8ce8-4e80832b5e3b%2FUntitled.png?table=block&id=974602f8-67cc-4804-9035-6582c6d4542a&spaceId=48c9b09a-caa7-47d2-986e-3519d39633de&width=2000&userId=&cache=v2)

 

### Create an API key and use it as the SMTP password

The **SMTP password** is an API key that you generate in your SendGrid account:

1. In SendGrid, click **Settings** and select **API Keys**.
2. At the top right of the API Keys page, click **Create API Key**.
3. Enter a name for the API key (for example, "Warmy").
4. Select the permission for the key, then click **Create**.
5. Copy the API key and save it somewhere safe. This key is the password for your SendGrid connection.
6. Go back to Warmy and paste the API key into the **SMTP password** field.

**IMPORTANT!** Set the API key permission to **Full Access**. This lets Warmy automatically track problems in sending emails and prevent them, so warm-up emails are not sent to unwanted or inaccessible email addresses.

### Step 6: Check the SMTP host and port

The **SMTP host** and **port** are filled in automatically, based on the default host and port that SendGrid uses. The SMTP host for SendGrid is `smtp.sendgrid.net`. You do not need to change these values.

How to connect IMAP

SendGrid does not have an IMAP server and does not support IMAP connections, so SendGrid's own IMAP cannot be used in Warmy.

Instead, you can use another mailbox that can accept email, such as Gmail (the IMAP host is `imap.gmail.com`).

The IMAP username (for example, your Gmail email address) and the email address you entered in the SMTP section must be the same. Otherwise, Warmy will not be able to track and process warm-up emails.

Connect the mailbox

After entering all the required information, click **Connect**. And voilà! Your mailbox is successfully connected and has started warming up. 🔥

Need help? Schedule a call with us 👨🏻‍💻

**IMPORTANT!** In order to avoid sending warm emails to unwanted or inaccessible email addresses, you need to change the permissions in the settings to **"Full Access".** Then Warmy will automatically be able to track problems in sending emails and prevent them.

![](https://warmy.notion.site/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Ffda194be-0864-45a0-9295-64b0ea678389%2FUntitled.png?table=block&id=c9eecdd9-6db4-4bf8-b46c-0adf27a88985&spaceId=48c9b09a-caa7-47d2-986e-3519d39633de&width=1730&userId=&cache=v2)

Copy

![](https://warmy.notion.site/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F51a212ab-e025-47a7-a78e-2c5ccc4b3bb0%2FUntitled.png?table=block&id=8efe3137-dbf0-455f-81fe-f76976edc486&spaceId=48c9b09a-caa7-47d2-986e-3519d39633de&width=2000&userId=&cache=v2)

Paste in field

![](https://support.warmy.io/hs-fs/hubfs/image-png-Apr-15-2025-12-00-55-1134-AM.png?width=670&height=359&name=image-png-Apr-15-2025-12-00-55-1134-AM.png)

#### Step 3:

**“SMTP username”** for SendGrid: “apikey”

![](https://support.warmy.io/hubfs/image-png-Oct-06-2023-01-39-00-8815-PM.png)

#### Step 4:

**“SMTP host”** for SendGrid: [smtp.sendgrid.net![](https://support.warmy.io/hubfs/9829AAF7-5C9E-4D77-9617-D44DE94107C4_4_5005_c-jpeg.jpeg)](http://smtp.sendgrid.net/)

#### **How to connect IMAP**

**IMAP**

Since SendGrid does not have an IMAP server, you can use another mailbox that can accept email, such as [Gmail](https://support.warmy.io/knowledge/how-to-connect-google-workspace?hsLang=en) (the host is **imap.gmail.com**). IMAP username (Gmail email address) and the email address you specified in the SMTP field should be the same. Otherwise, Warmy will not be able to track and process warm-up emails.

![](https://support.warmy.io/hubfs/image-png-Oct-06-2023-01-50-17-9220-PM.png)

It remains only to click on the "Connect" button, and voila! Done, your mailbox is successfully connected and has started warming up.🔥

#### [Need help? **Schedule a call with us 👨🏻‍💻**](https://www.warmy.io/book-a-support-call)

 

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